PURPOSE: To obtain the pellet easy to activate at a low temp. by mixing Zr-base alloy powder having specific grain size with specific amt. of V-base alloy powder, pressurizing the mixture in the neighbourhood of the ordinary temp., subjecting it to precompacting and thereafter to sintering.

CONSTITUTION: Zr-base alloy powder of Zr-V-Fe-Ni or the like having 45 to 300μm grain size is mixed with 2 to 35% V-base alloy powder of ferrovanadium or the like contg. ≥60% V components and having the grain size equal to or above that of the above powder and they are uniformly blended. The temp. raised by blending is cooled to the neighbourhood of the ordinary temp. After that, the mixture is pressurized to ≥500kgf/cm2, is subjected to precompacting and is sintered at 900 to 1200°C. In this way, a porous gas absorbing pellet can be manufactured.